I gave that some thought last evening when I first noticed it. It spins fast enough that it will just be a blur, and you don't normally see both sides at once. I am considering your suggestion before cutting it. I'm also wondering if I should look at actual spin direction and reverse the arc direction accordingly to match a real pin wheel. So many hard decisions to make when doing this stuff ... We decided to make this one with purple heart with dark stain in the letters, and clear gloss lacquer finish to preserve the purple color. The wood needs washing with solvent to clean out some of the natural oils before applying the lacquer.
Some of my best ideas have come from challenges given to me from friends, particularly this guy. Maybe he does this knowing that he and/or his daughter will get the results, usually at no charge.
Oh yeah, the tool I used the most when creating this design is the UNDO tool. I really like being able to step back to the last saved version. Saved a lot of work many times.